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libplugin: Add callbacks for successful and failed payments
We're about to suspend duplicate calls to `pay` and this will help us notify them if the original payment completes.
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3 changed files with 28 additions and 0 deletions
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@ -66,6 +66,8 @@ struct payment *payment_new(tal_t *ctx, struct command *cmd,
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p->routetxt = NULL;
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p->max_htlcs = UINT32_MAX;
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p->aborterror = NULL;
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p->on_payment_success = NULL;
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p->on_payment_failure = NULL;
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/* Copy over the relevant pieces of information. */
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if (parent != NULL) {
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@ -1869,6 +1871,10 @@ static void payment_finished(struct payment *p)
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assert(result.leafstates & PAYMENT_STEP_SUCCESS);
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assert(result.preimage != NULL);
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/* Call any callback we might have registered. */
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if (p->on_payment_success != NULL)
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p->on_payment_success(p);
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ret = jsonrpc_stream_success(cmd);
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json_add_node_id(ret, "destination", p->destination);
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json_add_sha256(ret, "payment_hash", p->payment_hash);
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@ -1911,6 +1917,9 @@ static void payment_finished(struct payment *p)
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if (command_finished(cmd, ret)) {/* Ignore result. */}
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return;
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} else if (result.failure == NULL || result.failure->failcode < NODE) {
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if (p->on_payment_failure != NULL)
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p->on_payment_failure(p);
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/* This is failing because we have no more routes to try */
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msg = tal_fmt(cmd,
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"Ran out of routes to try after "
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@ -1929,6 +1938,8 @@ static void payment_finished(struct payment *p)
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} else {
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struct payment_result *failure = result.failure;
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assert(failure!= NULL);
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if (p->on_payment_failure != NULL)
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p->on_payment_failure(p);
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ret = jsonrpc_stream_fail(cmd, failure->code,
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failure->message);
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@ -298,6 +298,11 @@ struct payment {
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/* A human readable error message that is used as a top-level
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* explanation if a payment is aborted. */
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char *aborterror;
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/* Callback to be called when the entire payment process
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* completes successfully. */
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void (*on_payment_success)(struct payment *p);
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void (*on_payment_failure)(struct payment *p);
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};
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struct payment_modifier {
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@ -1936,6 +1936,16 @@ static const char *init(struct plugin *p,
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return NULL;
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}
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static void on_payment_success(struct payment *payment)
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{
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return;
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}
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static void on_payment_failure(struct payment *payment)
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{
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return;
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}
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/* We are interested in any prior attempts to pay this payment_hash /
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* invoice so we can set the `groupid` correctly and ensure we don't
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* already have a pending payment running. We also collect the summary
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@ -2043,6 +2053,8 @@ payment_listsendpays_previous(struct command *cmd, const char *buf,
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last_group);
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}
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p->groupid = last_group + 1;
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p->on_payment_success = on_payment_success;
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p->on_payment_failure = on_payment_failure;
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payment_start(p);
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return command_still_pending(cmd);
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}
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